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SGI® Altix® ICE Sets New World Record in Performance and Scalability

SGI Integrated Blade Cluster Surpasses IBM, HP and Dell Systems in Key SPEC Benchmark

FREMONT, Calif. — March 9, 2010 — SGI (NASDAQ: SGI), a global leader in HPC and data center solutions, today announced that the SGI Altix ICE integrated blade cluster is the leading performer in Standard Performance Evaluation Corporation's (SPEC) MPI2007 benchmark tests for high performance technical computing. This SPEC benchmark demonstrates the superior scalability and computing power of the SGI system, which leverages Intel processors, Linux operating system and SGI Message Passing Toolkit (MPT) MPI library.

SGI ICE 8200EX, with 2,048 cores of Intel® Xeon® processors X5560 (2.8 GHz), together with SGI InfiniteStorage NAS, was more than 40 times faster than the 64-core, Intel® X5482 (3.2GHz) reference cluster in the suite's SPECmpiL_base2007 test. In addition, a 512-core Altix ICE 8200EX, with Intel® Xeon® processors X5570 (2.93 GHz), is the top performer in all published results for the medium data set metric, SPECmpiM_base2007, outperforming systems from IBM, Hewlett-Packard and Dell.

"Altix ICE continues to set world records in performance and scalability," said Christian Tanasescu, vice president of software engineering at SGI. "The standards-based, industry-leading Altix ICE platform is a core component of sustainable, high performance IT infrastructures, offering a variety of interconnect options that enable users to efficiently scale their applications across thousands of processor cores."

SPEC MPI2007 is designed to provide a fair and objective measurement of processor, memory subsystem, interconnect architecture, compiler, MPI library and file system performance. Version 1.0 of the MPI2007 suite contained a medium data set designed to scale from 4 to 128 processors; the new MPI2007 version 2.0 adds support for a large data set intended to test system scaling to 2,048 processors.

The benchmarks in the suite are from real-world applications comprised of a variety of fields, including computational fluid dynamics, electromagnetism, geophysics, ray tracing and hydrodynamics. All submissions are reviewed by SPEC prior to publication on their website.

Complete SPEC MPI2007 results are available at:

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© 2010 SGI. SGI and Altix are registered trademarks or trademarks of Silicon Graphics International Corp. or its subsidiaries in the United States and/or other countries. All other trademarks are property of their respective holders.

SPEC and SPEC MPI are registered trademarks of the Standard Performance Evaluation Corporation. Competitive results are from as of March 3rd, 2010. The comparisons above are based on the best performing published base results for each data set for the following hardware vendors: SGI (test sponsor SGI, SPECmpiL_base2007 43.3, 2048 cores, 512 chips, 2048 ranks), Intel (test sponsor Intel, SPECmpiL_base2007 1.0, 64 cores, 16 chips, 64 ranks); SGI (test sponsor SGI, SPECmpiM_base2007 59.8, 512 cores, 128 chips, 512 ranks), Dell, QLogic, ClusterVision (test sponsor QLogic Corporation, SPECmpiM_base2007 33.3, 512 cores, 256 chips, 512 ranks), IBM (test sponsor Indiana University, SPECmpiM_base2007 28.0, 512 cores, 128 chips, 512 ranks), Hewlett-Packard (test sponsor Hewlett-Packard Company, SPECmpiM_base2007 20.7, 256 cores, 64 chips, 256 ranks).